Fuel Consumption Model for Tactical Operations Centers …Fuel Consumption Model for Tactical...
Transcript of Fuel Consumption Model for Tactical Operations Centers …Fuel Consumption Model for Tactical...
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Fuel Consumption Model for Tactical Operations Centers (TOCs)
Jennifer Barker
SURVICE Engineering Company
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Background
• CERDEC conducted a power assessment in 2008 – Three Command Posts (CPs): the Brigade Main, the
Infantry Battalion CP and the MAIN Tactical CP. – Eight days of mission equipment operation.
• AMSAA requested SURVICE Engineering Company conduct a study to account for the fuel consumed.
• By then end of the study, SURVICE had accounted for 97% of the reported fuel used during TOCFEST.
• Resulting model can be used to predict fuel usage for TOCs – any weather conditions, shelters, shelter configuration, mission equipment layout, generators, and ECUs.
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BCT Main CP
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Problem Statement Find: the fuel consumed by TMSSs during TOCFEST
Given:
• Total daily fuel usage & calculated fuel usage by power plants
• Shelter and mission equipment layouts
• Dates evaluated
• Weather conditions
• ECU capacities and TMSS fuel consumption rates
Tools:
• AutoDISE software
• HVAC Requirements calculator (part of AutoDISE)
• SURVICE Fuel Consumption Model
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Additional Input
• Assumptions made in the following areas:
– ECU settings
– TOC hours of operation
– # personnel in each shelter
– Conditions within shelters
– Ground conditions
– Solar and electrical contribution to heat load
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Determine:
Heating required (BTUs)
Electrical Power to generate heating (BTU to kW)
Fuel to produce total power (kW to gal)
Approach
Heat (BTU) Power (kW) Shelter
(BTUs required) Generator (kW to gal)
ECU (BTUs to kW)
Fuel
AutoDISE SURVICE Model
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HVAC Requirements Calculator
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AutoDISE Input/Output
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Fuel Consumption Calculations
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Common Conditions
• TMSS ECU COP = 1 (Resistance heating)
• Fuel for HMMWV’s not included in analysis
• Distribution of Connector tent heat load
Actual Layout Heat load calculated
separately
Heat Load Distributed
TMSS TMSS
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Study Conditions
Scenario 1
(Original Assumptions) Scenario 2 Scenario 3
Heat Setting Low Low High
Hours of Operation 0600-1800 0600-1900 0600-1900
# Personnel # laptop stations 0 0
Internal Temperature 65-80°F 70-80°F 70-80°F
Desired Humidity 50% 50% 50%
Ventilation/Infiltration # laptop stations # laptop stations # laptop stations
Ground Type Dirt/grass Dirt/grass Dirt/grass
Ground Temperature Air temperature Air temperature Air Temperature
Solar Load 0 BTU/hr 0 BTU/hr 0 BTU/hr
Conversion of Electrical Load to Heat Load
100% 0% 0%
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Scenario 1 Fuel Consumption
0.00
50.00
100.00
150.00
200.00
250.00
3/24/2008 3/25/2008 3/26/2008 3/27/2008 3/28/2008 3/29/2008 3/30/2008 3/31/2008 4/1/2008 4/2/2008 4/3/2008
Fuel
Co
nsu
med
(ga
l)
Intelligence
Fire S&S
Plans
Sustainment
Move & Man Pro
C4 Ops
Current Ops
Current OPS-1
Current OPS-2
Current OPS-1
Sustainment
All Tents
Target Fuel
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Scenario 2 Fuel Consumption
0.00
50.00
100.00
150.00
200.00
250.00
3/24/2008 3/25/2008 3/26/2008 3/27/2008 3/28/2008 3/29/2008 3/30/2008 3/31/2008 4/1/2008 4/2/2008 4/3/2008
Fue
l Co
nsu
me
d (
gal)
Intelligence
Fire S&S
Plans
Sustainment
Move & Man Pro
C4 Ops
Current Ops
Current OPS-1
Current OPS-2
Current OPS-1
Sustainment
All Tents
Target Fuel
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Scenario 3 Fuel Consumption
0.00
50.00
100.00
150.00
200.00
250.00
3/24/2008 3/25/2008 3/26/2008 3/27/2008 3/28/2008 3/29/2008 3/30/2008 3/31/2008 4/1/2008 4/2/2008 4/3/2008
Fue
l Co
nsu
me
d (
gal)
Intelligence
Fire S&S
Plans
Sustainment
Move & Man Pro
C4 Ops
Current Ops
Current OPS-1
Current OPS-2
Current OPS-1
Sustainment
All Tents
Target Fuel
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Fuel Consumption (gals)
Date Scenario 1 Scenario 2 Scenario 3 Consumed by TMSSs
3/25/2008 61.40 79.74 137.37 129.6
3/26/2008 52.75 72.80 107.88 168.6
3/27/2008 54.53 76.10 117.88 43.6
3/28/2008
3/29/2008 64.99 81.13 147.54 177.6
3/30/2008 69.25 82.00 157.13 77.6
3/31/2008 60.22 79.58 135.95 210.6
4/1/2008 50.40 65.77 88.71 111.6
4/2/2008 59.61 79.45 134.73 140.6
Total 473.15 616.58 1027.18 1059.8
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Conclusion
• SURVICE model had accounted for 97% of the reported fuel used during TOCFEST.
• Resulting model can be used to predict fuel usage for TOCs – any weather conditions, shelters, shelter configuration, mission equipment layout, generators, and ECUs.
• The model shows what factors can significantly affect fuel usage.
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BACKUP
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Potential Fuel Consumption based on Fuel Consumption Data from CERDEC
Generator Operating Conditions
TMSS Size
Fuel Consumption
Daily Fuel Consumption (12 hrs/day)
8-day total Fuel Consumption Qty of TMSS
size in TOC
Fuel Consumed per TMSS size (8-day total)
Potential Fuel Usage for TOCFEST
(gal/hr) (gal/day) (gal) (gal) (gal)
Full Load Medium 1.46 17.52 140.16 10 1401.6
1629.12 Large 2.37 28.44 227.52 1 227.52
Half Load Medium 0.54 6.48 51.84 10 518.4
615.36 Large 1.01 12.12 96.96 1 96.96
No Load Medium 0.38 4.56 36.48 10 364.8
388.8 Large 0.25 3 24 1 24
Recorded fuel used during TOCFEST 1231
Report estimated fuel consumption by PP 171.2 14%
Report estimated fuel consumption by TMSS’s 1059.8 86%